Cognitive Scaffold

Preparing your thinking workspace

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MENTAL MODEL · M0624

Mendel's Peas

Mendel's Peas
TechnicalHigh supportStatistics
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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

Mendel discovered the laws of inheritance by growing peas. However, later statisticians (such as Fisher) found that his data were 'too good to be true', perfectly matching theoretical expectations with almost no random error. This suggests the possibility of unconscious data manipulation.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

Be wary of perfect data. When you see reports, experimental results, or backtest curves that are flawless, they are likely fake (overfitting or fabrication). The real world is full of noise and bias. Data with some flaws is more credible.

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Anchor fast decisions

Mendel discovered the laws of dominance and segregation through pea hybridization. But the 'overfitting'-like perfection of the data (questioned by Fisher) suggests that real random experiments must have noise; overly neat data may have been unconsciously manipulated and thus is less credible.

MINIMUM ACTION

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Source support: Explicit

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    zh.wikipedia.orghttps://zh.wikipedia.org/wiki/%E5%AD%9F%E5%BE%B7%E5%B0%94%E5%AE%9A%E5%BE%8BZH · Explicit
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